🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.1

Radius: 1.76

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 0.53 AU - 0.53 AU

Year: 253 Days

Day: 20.2 Hours

Environment

Temp: -126 °C

Axial Tilt: 35.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 77,554,565 km

• M1: 226,042 km (0.12 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 112.3

Radius: 9.2

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 0.83 AU - 0.83 AU

Year: 496 Days

Day: 12.7 Hours

Environment

Temp: -155 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 77,554,565 km

• M1: 114,442 km (0.118 R)
• M2: 484,099 km (0.09 R)
• M3: 1,012,927 km (0.116 R)
• M4: 1,458,729 km (0.087 R)
• M5: 1,766,003 km (0.065 R)
• M6: 2,131,321 km (0.111 R)
• M7: 2,612,876 km (0.086 R)
• M8: 3,090,243 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 839.7

Radius: 10.7

Gravity: 7.33 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.7 AU - 1.06 AU

Year: 542 Days

Day: 7.5 Hours

Environment

Temp: -158 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 77,554,565 km

• M1: 133,142 km (0.088 R)
• M2: 475,123 km (0.054 R)
• M3: 853,306 km (0.088 R)
• M4: 1,358,947 km (0.111 R)
• M5: 1,834,818 km (0.075 R)
• M6: 2,691,864 km (0.102 R)
• M7: 3,248,368 km (0.092 R)
• M8: 3,660,809 km (0.05 R)
• M9: 4,607,914 km (0.112 R)
• M10: 5,459,425 km (0.073 R)
• M11: 5,895,054 km (0.12 R)
• M12: 6,713,204 km (0.05 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 817.6

Radius: 12.7

Gravity: 5.07 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 1.53 AU - 1.53 AU

Year: 1241 Days

Day: 11.3 Hours

Environment

Temp: -182 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 77,554,565 km

• M1: 158,424 km (0.082 R)
• M2: 571,314 km (0.104 R)
• M3: 1,012,927 km (0.096 R)
• M4: 1,430,604 km (0.115 R)
• M5: 1,966,165 km (0.063 R)
• M6: 2,496,489 km (0.083 R)
• M7: 2,938,850 km (0.112 R)
• M8: 3,372,534 km (0.08 R)
• M9: 4,035,253 km (0.089 R)
• M10: 5,038,905 km (0.067 R)
• M11: 5,493,084 km (0.083 R)
• M12: 6,133,513 km (0.08 R)
• M13: 6,847,992 km (0.049 R)
• M14: 7,380,561 km (0.116 R)
• M15: 10,339,158 km (0.12 R)
• M16: 10,973,303 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 622.2

Radius: 9.3

Gravity: 7.19 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 1.81 AU - 1.83 AU

Year: 1611 Days

Day: 12.9 Hours

Environment

Temp: -182 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 77,554,565 km

• M1: 116,088 km (0.087 R)
• M2: 408,402 km (0.114 R)
• M3: 955,482 km (0.106 R)
• M4: 1,521,410 km (0.042 R)
• M5: 1,891,515 km (0.095 R)
• M6: 2,297,375 km (0.098 R)
• M7: 2,639,206 km (0.108 R)
• M8: 3,103,408 km (0.098 R)
• M9: 3,442,397 km (0.071 R)
• M10: 3,944,896 km (0.103 R)
• M11: 4,495,566 km (0.04 R)
• M12: 5,138,388 km (0.109 R)
• M13: 5,504,304 km (0.095 R)
• M14: 6,216,240 km (0.103 R)
• M15: 6,808,648 km (0.045 R)
• M16: 7,574,140 km (0.104 R)
• M17: 7,991,967 km (0.091 R)
• M18: 8,395,732 km (0.087 R)
• M19: 9,917,591 km (0.095 R)
• M20: 10,691,909 km (0.062 R)
• M21: 11,651,729 km (0.112 R)
• M22: 12,096,334 km (0.034 R)
• M23: 12,629,351 km (0.072 R)
• M24: 13,377,640 km (0.036 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.71 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 745.6

Radius: 6.1

Gravity: 20.04 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 7.84 AU - 11.58 AU

Year: 19849 Days

Day: 21.9 Hours

Environment

Temp: -228 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 77,554,565 km

• M1: 77,342 km (0.051 R)
• M2: 371,152 km (0.071 R)
• M3: 617,989 km (0.088 R)
• M4: 962,064 km (0.033 R)
• M5: 1,164,919 km (0.07 R)
• M6: 1,820,606 km (0.05 R)
• M7: 2,093,473 km (0.109 R)
• M8: 2,821,266 km (0.092 R)
• M9: 3,160,704 km (0.119 R)
• M10: 3,469,025 km (0.073 R)
• M11: 3,736,057 km (0.104 R)
• M12: 4,344,921 km (0.081 R)
• M13: 4,620,181 km (0.12 R)
• M14: 5,092,461 km (0.106 R)
• M15: 5,477,227 km (0.108 R)
• M16: 7,501,286 km (0.043 R)
• M17: 12,258,498 km (0.054 R)
• M18: 13,959,426 km (0.119 R)
• M19: 15,731,413 km (0.111 R)
• M20: 17,561,593 km (0.045 R)
• M21: 19,622,005 km (0.036 R)
• M22: 22,646,724 km (0.098 R)
• M23: 23,790,699 km (0.119 R)
• M24: 25,633,595 km (0.068 R)
• M25: 26,306,038 km (0.055 R)
• M26: 29,846,271 km (0.054 R)
• M27: 34,498,167 km (0.104 R)
• M28: 38,725,802 km (0.119 R)
• M29: 42,502,700 km (0.113 R)
• M30: 44,079,761 km (0.115 R)
• M31: 44,721,236 km (0.097 R)
• M32: 45,859,078 km (0.12 R)
• M33: 46,683,512 km (0.043 R)
• M34: 49,215,904 km (0.105 R)
• M35: 50,080,131 km (0.077 R)
• M36: 56,038,465 km (0.076 R)
• M37: 60,459,680 km (0.111 R)
• M38: 68,264,201 km (0.1 R)
• M39: 74,880,017 km (0.1 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 551.9

Radius: 7.1

Gravity: 10.95 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 9.88 AU - 11.5 AU

Year: 22929 Days

Day: 19.5 Hours

Environment

Temp: -231 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 77,554,565 km

• M1: 88,263 km (0.096 R)
• M2: 329,415 km (0.101 R)
• M3: 736,321 km (0.1 R)
• M4: 1,465,610 km (0.052 R)
• M5: 2,077,017 km (0.082 R)
• M6: 2,509,504 km (0.044 R)
• M7: 3,106,250 km (0.106 R)
• M8: 4,578,293 km (0.044 R)
• M9: 5,008,986 km (0.061 R)
• M10: 5,993,190 km (0.091 R)
• M11: 6,642,295 km (0.066 R)
• M12: 7,677,812 km (0.097 R)
• M13: 8,338,137 km (0.108 R)
• M14: 9,427,209 km (0.103 R)
• M15: 10,793,187 km (0.085 R)
• M16: 11,297,930 km (0.059 R)
• M17: 13,260,056 km (0.07 R)
• M18: 14,815,425 km (0.12 R)
• M19: 19,458,494 km (0.09 R)
• M20: 20,111,339 km (0.102 R)
• M21: 22,057,159 km (0.082 R)
• M22: 23,807,005 km (0.057 R)
• M23: 25,206,194 km (0.079 R)
• M24: 40,049,295 km (0.05 R)
• M25: 42,488,937 km (0.102 R)
• M26: 57,698,253 km (0.082 R)
• M27: 60,213,891 km (0.105 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 289 - 16,227 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit